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Docs: Document the `_doc` sort order.

This commit is contained in:
Adrien Grand 2015-08-24 15:37:30 +02:00
parent 9112217869
commit 7b878b5b5c
1 changed files with 5 additions and 1 deletions
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6
docs/reference/search/request/sort.asciidoc
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@ -3,7 +3,7 @@
Allows to add one or more sort on specific fields. Each sort can be
reversed as well. The sort is defined on a per field level, with special
field name for `_score` to sort by score.
field name for `_score` to sort by score, and `_doc` to sort by index order.
[source,js]
--------------------------------------------------
@ -21,6 +21,10 @@ field name for `_score` to sort by score.
}
--------------------------------------------------
NOTE: `_doc` has no real use-case besides being the most efficient sort order.
So if you don't care about the order in which documents are returned, then you
should sort by `_doc`. This especially helps when <<search-request-scroll,scrolling>>.
==== Sort Values
The sort values for each document returned are also returned as part of